CBC News reports that paramedics rushed the newborn to a nearby hospital where she was "worked on" in the trauma unit, but that she showed no vital signs. The baby was declared dead and placed under a sheet.

Two police officers remained with the body while waiting for the coroner. About 90 minutes after the call was made, however, the officers saw the sheet begin to move.

Police notified medical staff, and the baby was revived, CTV notes. Although both the mother and baby were physically well on Sunday evening, police would not comment on the woman's "emotional condition."

An emergency room physician uninvolved with the incident called it one of the "miracle baby scenarios," according to Fox New Orleans station WVUE.

"That would be the most likely reason," Dr. Jamie Hutchison, an intensive care physician not involved in the newborn's care, told the publication on Tuesday. "And that's because the body requires a certain temperature for metabolism to occur. So with each degree drop in temperature, the metabolism of every organ slows ... They're not dead, but they appear that way."